Torque base power transmission line windage yaw prevention iron tower

Abstract

A torque base power transmission line windage yaw prevention iron tower aims to solve the problem that an existing power transmission iron tower has windage yaw. The torque base power transmission line windage yaw prevention iron tower is composed of a torque tower footing, tower legs, a tower body, a tower head, wires and insulators. According to the torque base power transmission line windage yaw prevention iron tower, the torque tower footing is arranged, when windage yaw occurs, the torque tower footing and the tower body can rotate relatively after the power transmission line swings, the resistance connecting piece can counteract the torsion of relative rotation, swinging is further stopped, and the tower body is restored to the initial position under the restoring force of the resistance connecting piece; the torque tower footing and the tower body can rotate relatively, so that the tension of a windage yaw phenomenon on the power transmission line is reduced, simultaneous resonance of the iron tower and the power transmission line during windage yaw of the power transmission line is avoided, windage yaw energy is effectively reduced, and power supply safety is further guaranteed.

Description

Technical Field

[0001] The invention relates to a windproof iron tower. Background Art

[0002] Wind deviation of transmission lines refers to the phenomenon that the conductor deviates under the action of wind, resulting in insufficient insulation distance between the transmission line and the tower, and flashover discharge occurs. Wind deviation discharge of transmission lines has always been one of the main problems affecting the safe operation of the line, especially for trunk transmission lines. Since trunk transmission lines have the characteristic that reclosing after flashover is not easy to succeed, once a wind deviation flashover accident occurs in the trunk transmission line, it will cause large-scale power outages and seriously affect the reliability of power supply in the power system.

[0003] When wind-induced discharge occurs in transmission lines, the following rules and characteristics are observed: wind-induced flashovers often occur under adverse climatic conditions, reclosing is basically unsuccessful when wind-induced flashovers occur, and the region where wind-induced flashovers occur is uncertain. Therefore, wind-induced discharges in transmission lines have the characteristics of wide coverage, high frequency, and large impact. In recent years, researchers have proposed a series of wind-induced discharge prevention measures for wind-induced discharge accidents in power grids, such as changing a single-unit insulator string to a double-unit V-type insulator string, hanging a heavy hammer under the insulator string, and even changing a straight-line tower to a tension tower. From a technical perspective, the above measures can reduce the harm caused by wind-induced discharge to a certain extent. However, from the perspective of the specific operational difficulty and economic applicability, the schemes of changing I-string to V-string and changing straight-line tower to tension tower are difficult to construct and expensive, and the power needs to be cut off during the specific operation. The scheme of adding a heavy hammer to prevent wind-induced discharge can only suppress wind-induced discharge accidents to a certain extent. Due to the large surface area of ​​the heavy hammer, it is easy to be blown by the wind. Many hammers weigh hundreds of kilograms, which not only increases the extra load of the tower, but also improves the design margin of the tower. When strong winds occur, the poles and towers are easily damaged. In severe cases, the towers may collapse and the lines may be disconnected, which may cause more serious consequences than wind deflection tripping. Transmission towers mainly include angle steel towers, steel pipe towers, steel pipe angle steel combined towers, steel pipe poles, etc. Transmission towers include wine glass type, cat head type, upper type, dry type and barrel type, etc. However, most of these towers are rigid towers with fixed vibration frequencies. They can only play a supporting role. When wind deflection occurs to the transmission line, they are very likely to resonate with the transmission line at the same time, and cannot effectively reduce the wind deflection energy. Summary of the invention

[0004] In order to solve the problem that the existing power transmission iron tower has been deflected by wind, the present invention provides a wind-proof deflection-proof iron tower for power transmission lines with a torque base.

[0005] The torque base transmission line windproof iron tower of the present invention comprises a torque tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6) and an insulator (5);

[0006] The torque tower base (1) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); two arc-shaped holes (11) are arranged on the upper disc (7), and upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc-shaped holes (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc-shaped holes (11); and a resistance connecting piece (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10).

[0007] The principles and beneficial effects of the present invention are:

[0008] The torque base transmission line wind deflection prevention iron tower of the present invention is provided with a torque tower base (1), an upper disc (7) in the torque tower base (1) is fixedly connected to a tower leg (2), so that the torque tower base (1) and a tower body (3) can rotate relative to each other, and a resistance connecting member (13) is provided in the torque tower base (1), and the resistance connecting member (13) is a spring or a hydraulic connecting rod, and the resistance connecting member (13) is symmetrically arranged to restore the relative rotation to the original position. When wind deflection occurs, the power transmission line swings, causing the torque tower base (1) and the tower body (3) to rotate relative to each other, and the resistance connecting member (13) can offset the torque of the relative rotation, further stopping the swing and restoring the tower body (3) to the initial position under the restoring force of the resistance connecting member (13). The torque tower base (1) and the tower body (3) can rotate relative to each other, reducing the pulling force of the wind deflection on the power transmission line, avoiding the simultaneous resonance of the iron tower and the power transmission line when the power transmission line is wind deflected, effectively reducing the wind deflection energy, and further ensuring the safety of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a wind-proof iron tower for a torque-based transmission line;

[0010] Figure 2 is a schematic structural diagram of a torque tower base (1);

[0011] Figure 3 for Figure 2 Top view of the . DETAILED DESCRIPTION

[0012] The technical solution of the present invention is not limited to the specific implementation modes listed below, but also includes any reasonable combination of the specific implementation modes.

[0013] Specific implementation method 1: In this implementation method, the torque base transmission line wind-proof iron tower comprises a torque tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6) and an insulator (5);

[0014] The torque tower base (1) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); two arc-shaped holes (11) are arranged on the upper disc (7), and upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc-shaped holes (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc-shaped holes (11); and a resistance connecting piece (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10).

[0015] In the embodiment of the invention, a torque tower base (1) is provided in the anti-wind deflection iron tower of the torque base transmission line of the present invention. The upper disc (7) in the torque tower base (1) is fixedly connected to the tower leg (2), so that the torque tower base (1) and the tower body (3) can rotate relative to each other, and a resistance connecting member (13) is provided in the torque tower base (1). The resistance connecting member (13) is a spring or a hydraulic connecting rod. The resistance connecting member (13) is symmetrically arranged to restore the relative rotation to the original position. When wind deflection occurs, the transmission line swings and causes the torque tower base (1) and the tower body (3) to rotate relative to each other. The resistance connecting member (13) can offset the torque of the relative rotation, further stopping the swing and restoring the tower body (3) to the initial position under the restoring force of the resistance connecting member (13). The relative rotation of the torque tower base (1) and the tower body (3) reduces the pulling force of the wind deflection on the transmission line, avoids the simultaneous resonance of the iron tower and the transmission line when the transmission line is wind deflected, effectively reduces the wind deflection energy, and further ensures the safety of power supply.

[0016] Specific implementation method 2: This implementation method is different from specific implementation method 1 in that: the upper disc (7) and the lower disc (8) are coaxially stacked, and the rotating shaft (9) is arranged at the center of the upper disc (7) and the lower disc (8).

[0017] Specific implementation method three: This implementation method is different from specific implementation methods one or two in that: the upper disc (7) is fixedly connected to the tower leg (2).

[0018] Specific implementation method 4: This implementation method is different from any one of specific implementation methods 1 to 3 in that: the resistance connecting member (13) is a spring or a hydraulic connecting rod.

[0019] Specific implementation mode 5: This implementation mode is different from any one of the specific implementation modes 1 to 4 in that: the two arc-shaped holes (11) are symmetrically arranged on both sides of the center of the upper disc (7).

[0020] Specific implementation method 6: This implementation method is different from any one of specific implementation methods 1 to 5 in that: the tower body (3) is arranged between the tower legs (2) and the tower head (4).

[0021] Specific implementation method seven: This implementation method is different from any one of specific implementation methods one to six in that: the tower leg (2) is arranged on the torque tower base (1).

[0022] Specific implementation eight: This implementation differs from any one of specific implementations one to seven in that: the insulator (5) is suspended on both sides of the tower head (4), and the conductor (6) is fixed at the lower end of the insulator (5).

[0023] Example 1

[0024] The torque base transmission line windproof iron tower of this embodiment is composed of a torque tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6) and an insulator (5);

[0025] The torque tower base (1) is composed of an upper disk (7), a lower disk (8) and a rotating shaft (9); the upper disk (7) and the lower disk (8) are coaxially stacked, and the rotating shaft (9) is arranged at the center of the upper disk (7) and the lower disk (8); the upper disk (7) is fixedly connected to the tower leg (2); two arc holes (11) are arranged on the upper disk (7); the two arc holes (11) are symmetrically arranged on both sides of the center of the upper disk (7); upper disk fixing columns (10) are respectively arranged on the upper surface of the upper disk (7) at both ends of the arc holes (11); (8) is provided with two lower disc fixing columns (12), and the two lower disc fixing columns (12) are respectively arranged in the arc-shaped holes (11); a resistance connecting member (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10) on both sides, and the resistance connecting member (13) is a hydraulic connecting rod; the tower body (3) is arranged between the tower leg (2) and the tower head (4), the tower leg (2) is arranged on the torque tower base (1), the insulator (5) is suspended on both sides of the tower head (4), and the conductor (6) is fixed to the lower end of the insulator (5).

[0026] In the torque base transmission line wind deflection prevention iron tower of the present embodiment, a torque tower base (1) is provided, an upper disc (7) in the torque tower base (1) is fixedly connected to the tower leg (2), so that the torque tower base (1) and the tower body (3) can rotate relative to each other, and a resistance connecting member (13) is provided in the torque tower base (1), and the resistance connecting member (13) is a spring or a hydraulic connecting rod, and the resistance connecting member (13) is symmetrically arranged to restore the relative rotation to the original position. When wind deflection occurs, the transmission line swings and causes the torque tower base (1) and the tower body (3) to rotate relative to each other, and the resistance connecting member (13) can offset the torque of the relative rotation, further stopping the swing and restoring the tower body (3) to the initial position under the restoring force of the resistance connecting member (13). The torque tower base (1) and the tower body (3) can rotate relative to each other, reducing the pulling force of the wind deflection on the transmission line, avoiding the simultaneous resonance of the iron tower and the transmission line when the transmission line is wind deflected, effectively reducing the wind deflection energy, and further ensuring the safety of power supply.

Claims

1. A torque base transmission line windproof iron tower, characterized in that: The torque base transmission line windproof iron tower comprises a torque tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6) and an insulator (5); The torque tower base (1) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); two arc-shaped holes (11) are arranged on the upper disc (7), and upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc-shaped holes (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc-shaped holes (11); and a resistance connecting piece (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10).

2. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The upper disc (7) and the lower disc (8) are coaxially stacked, and the rotating shaft (9) is arranged at the center of the upper disc (7) and the lower disc (8).

3. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The upper disc (7) is fixedly connected to the tower leg (2).

4. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The resistance connecting member (13) is a spring or a hydraulic connecting rod.

5. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The two arc-shaped holes (11) are symmetrically arranged on both sides of the center of the upper disc (7).

6. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The tower body (3) is arranged between the tower legs (2) and the tower head (4).

7. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The tower leg (2) is arranged on the torque tower base (1).

8. The torque base transmission line windproof iron tower according to claim 1, characterized in that: The insulator (5) is suspended on both sides of the tower head (4), and the conductor (6) is fixed at the lower end of the insulator (5).

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